HBO's reality series goes behind-the-scenes with athletes as they prepare for future matchups. The series debuted in 2007 with a look at Oscar De La Hoya and Floyd Mayweather Jr. as they prepared to face each other for the junior-middleweight title. Later seasons focused on other boxing matchups, in addition to NASCAR driver Jimmie Johnson and multiple (more…)HBO's reality series goes behind-the-scenes with athletes as they prepare for future matchups. The series debuted in 2007 with a look at Oscar De La Hoya and Floyd Mayweather Jr. as they prepared to face each other for the junior-middleweight title. Later seasons focused on other boxing matchups, in addition to NASCAR driver Jimmie Johnson and multiple NHL teams.

Premise: HBO's reality series goes behind-the-scenes with athletes as they prepare for future matchups. The series debuted in 2007 with a look at Oscar De La Hoya and Floyd Mayweather Jr. as they prepared to face each other for the junior-middleweight title. Later…
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